29485409 has 2 divisors, whose sum is σ = 29485410. Its totient is φ = 29485408.

The previous prime is 29485399. The next prime is 29485439. The reversal of 29485409 is 90458492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17430625 + 12054784 = 4175^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 29485409 - 2⁸ = 29485153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (29485439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14742704 + 14742705.

It is an arithmetic number, because the mean of its divisors is an integer number (14742705).

Almost surely, 2^29485409 is an apocalyptic number.

It is an amenable number.

29485409 is a deficient number, since it is larger than the sum of its proper divisors (1).

29485409 is an equidigital number, since it uses as much as digits as its factorization.

29485409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 29485409 is about 5430.0468690427. The cubic root of 29485409 is about 308.9363791334.

The spelling of 29485409 in words is "twenty-nine million, four hundred eighty-five thousand, four hundred nine".